I made a few changes - I can get almost full utilization of the bed now.
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I lowered the orbiter mount, now the extruder motor just clears the right side travel belt. this allows for full X+ travel.
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modified the fan mount, 4020 fan mount is rotated. this allows for full travel (maybe 0.5 mm clash with the left belt. I may fix this in a future update.
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the fan now has an attachment point on the adapter plate. this really stiffened up the entire system .
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by shifting my bed forward ~ 10mm, I get full travel of the printhead except for a 20mmx5mm block at the corners near the doors. not perfect but its really not a huge loss of print space.
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Canbus board mount will work for for SHT36 and EBB36. Its a bit flexy - need to revisit this
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added two small holes in the fan and duct mount to mount an ADXL.
I tried to make everything printable without supports but I you will want some supports on the adapter plate and duct. Organic supports are a breeze these days.